Fruiting body small; Pileus 2.2-3.2 cm in diameter, convex to bell shaped, becoming flat, umbonate, moist, brownish, dark grey to dark blackish on the pileal surface, covered with light, brownish, grey scales on yellowish white background; margin regular, splitting when mature, in-rolled; cuticle can be fully peeled; flesh about 0.1cm thick, cream to white; taste and odour mild.; Lamellae free, unequal, crowded, yellowish white, unchanging up to 0.2cm broad; gill edges smooth, fragile; Stipe central, 5-8cm long, 0.2-0.3cm yellowish white, broad, some times concolourous with the pileus, becoming yellowish brown on handling, scaly, hollow; with single superior annulus, membranous, with a greyish black margin; Basidiospores 5.5-8.3 × 3-4.6µm, ellipsoid with a single guttule, dextrinoid, strongly congophilous, apical pore absent; Basidia: 12.6-25.2 × 6.2-7.8µm, clavate, tetrasporic; sterigmata 3-4.3µm long; gill edges sterile; Cheilocystidia 22-37 × 4.6-11 µm, clavate, lageniform, sub-capitate, crowded, often in clusters; Pleurocystidia absent.
Specimens examined
India, Maharashtra, Kolhapur, Shahuwadi, Ambeshwar Devrai, (16°57ʹ02ʺN-74°44ʹ34ʺE), on soil, alone, solitary, 19.06.2020, Bornak, S.I. (Y20V4C12)
Remarks
Lepiota atrodiscais distinguished by medium-sized carpophores with an annulate stipe that frequently has a grayish brown annular edge and a cap covered in thin, greyish black scales. In India this species was first described by Kumari, et al., (2012) from Himachal Pradesh. This species is poisonous and not suitable for human consumption (Pushpa and Purushothama, 2012). Vishwakarma, et al., (2017) also reported this species from Uttar Pradesh. This is the first record from Maharashtra state.
References:
Kumari, B., Atri, N.S. and Kaur, M. (2012). Some interesting lepiotoid mushrooms from North India. Mycosphere, 3(6), 949–955, Doi 10.5943 /mycosphere/3/6/9
Pushpa, H. and Purushothama, K.B. (2012). Biodiversity of Mushrooms in and around Bangalore (Karnataka), India. American-Eurasian Journal of Agriculture and Environment Sciences, 12(6): 750-759. Vishwakarma, P., Singh, P. and Tripathi, N.N. (2017). Diversity of macrofungi and its distribution pattern of Gorakhpur District, Uttar Pradesh, India. Studies in Fungi2(1), 92–105, Doi 10.5943/sif/2/1/11
